Although deciding the Ubuntu codenames is more Canonical's decision, I think it's still fun to have a thread dedicated to what you think are the best codenames so far and which ones you'd like to see in future releases.

I really liked Trusty Tahr, even though back then I was using Edubuntu just to have gnome-session-fallback by default.The reason for that is that it was in my opinion one release that really deserved to be labeled "Trusty". It's still used in my university today for our student workstations.